import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;

/**
 * @author: knowno
 * @create: 2025-09-18 09:04
 * @Version 1.0
 **/
public class TestJDBC_DBUtil {
    public static void main(String[] args) {

       //直接调用工具类的静态方法来实现增加删除和修改
        int i = DBUtil.exUpdate("delete from  role where id>10 ");
        System.out.println(i);
    }
}
